简介：Inthepresentwork,verticallyalignedZnOnanorodarrayswithtunablesizearesuccessfullysynthesizedonnonseededITOglasssubstratesbyasimpleelectrodepositionmethod.Theeffectofgrowthconditionsonthephase,morphology,andorientationoftheproductsarestudiedindetailbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),andtransmissionelectronmicroscopy(TEM).Itisobservedthattheas-preparednanostructuresexhibitapreferredorientationalongcaxis,andthesizeanddensityoftheZnOnanorodcanbecontrolledbychangingtheconcentrationofZnCl2.Fieldemissionpropertiesoftheas-synthesizedsampleswithdifferentdiametersarealsostudied,andtheresultsshowthatthenanorodarrayswithasmallerdiameterandappropriateroddensityexhibitbetteremissionproperties.TheZnOnanorodarraysshowapotentialapplicationinfieldemitters.